module Bullet {
	/**
	 * 敌机发射的子弹 ---刘伟
	 * */
	export class BulletEnemy extends BulletBattery{
		
		/**飞行轨迹 */
		public bulletMove(deltaTimeStamp: number) {
            this.bullet.x+=Math.cos(this.Angle)*this.bulletSpeed;
			this.bullet.y+=Math.sin(this.Angle)*this.bulletSpeed;	
        }
	}
}